Peformance tuning tools

Hi, I am kind of new to RoR and currently experimenting with a dummy site of mine. I have MySQL as database.I would like to know if we have any tools to check database performance. Do we have any plugin for Rad rails for this purpose?

Thanks in advance, Sonia Sharma

Your best bet is probably to regularly look at (or tail -f) your development log file to see how much work, how many queries, your application is making to your db. It's a surefire way to tune the amount of SQL you're asking within your application. It's worked for me!

- J